Answer:
In this case Jack is only using a part or sample of the total population, so he is doing a sample standard deviation. When you use the total population you are doing a population standard deviation, otherwise, it’s always going to be the sample standard deviation.
Both deviations have different notations. The notation for this type of standard deviation (the one used by Jack) is:
"n" for the number of observations (lowercase)
"x-bar" for the average of the sample
"s" for the standard deviation
"s^2" for the variance
Answer:
The lowest terms equivalent to - 1.25 = - 
Step-by-step explanation:
- 1.25 = - 
= - ( 1 × 100 +25) ÷ 100
= -( 
) × (
= - 
= - () × (
= -
The answer is B. And I am not that sure about my answer, but it has to be the correct answer for what you put. THANK YOU!!!!
This first one where Jeremy is already in 250miles. X is the amount of time.
